Things to Do in Costa Mesa, LA the Weekend of Sep 18–20, 2026

Stumblday's hand-checked ranking of the best things to do in Costa Mesa, LA, Orange County the weekend of Sep 18–20, 2026: 2 picks, refreshed weekly.

2 picks · checked Sep 10

September 20–October 1; check store for hours

hololive English Justice: City Groove

Justice gets a city-pop makeover at Mitsuwa: exclusive hololive merchandise, a mini game and photo opportunities.

Limited Run

Submitted byStumblday Editors

#1September 20–October 1; check store for hours · Limited Run

Limited Run

Justice gets a city-pop makeover at Mitsuwa: exclusive hololive merchandise, a mini game and photo opportunities.

Sunday September 20, 9am–5:30pm; free entry starts 10:30amFree reserved admission 10:30…

Try bridesmaid dresses in person and take your choice home the same day, with free reserved shopping from in Costa Mesa.

FreeOne Day Only

Submitted byStumblday Editors

#2Sunday September 20, 9am–5:30pm; free entry starts 10:30am · One Day Only

Free reserved admission 10:30…One Day Only

Try bridesmaid dresses in person and take your choice home the same day, with free reserved shopping from in Costa Mesa.